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4 years ago

The radius of a circle is 2 inches. what is the circles diameter

2 answers:

andrey2020 [161]4 years ago

6 0

The diameter is a line that stretches across the middle of a circle from end to end. The radius is one half of this line, stretching from the center of the circle to a point on the side of the circle. This means that the diameter is 2 times the length of the radius. 2 times 2 is 4, meaning that the diameter is 4 inches.

valentinak56 [21]4 years ago

6 0

4 is the circle's diameter.

The radius of a circle is half of the half of a circle. So, imagine having a line cut through a circle (the diameter). Half of that line is called the radius. In mathematical format, the diameter over two, or divided by two, is the radius.

Diameter is the radius times 2, you can visualize it as a straight line cutting a circle in half.

Now, knowing this information, if the radius is two inches, all you have to do is 2*2, which is 4.

In conclusion, the answer would be 4 inches, or 48 centimeters if you want to get specific.

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0.11011001100011……….. is this rational or irrational

Greeley [361]

Answer:

Irrational, since it goes on forever.

Step-by-step explanation:

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3 years ago

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Mr Sosha teaches 4 math classes, with the same number of students in each class. Of those students , 80 are sixth graders and 40

sveticcg [70]

Answer:

Step-by-step explanation:

80 + 40 = 120

120 represents the total students for all 4 classes. And since there is an even amount in each class...

120 / 4 = 30

So 30 would be your answer.

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3 years ago

81 students is 90â% of how manyâ students?

Lelu [443]

81÷s = 90÷100
s= 81 x 100 ÷ 90
s= 90
81 students is 90% of 90 students

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3 years ago

There are twenty trays of paint. Each tray has five colors. One of the colors is purple. What fraction of the colors is purple i

suter [353]

In one tray, we have 1/5. Since one is purple out of the 5 colors.

So in 20 trays, we have:

(1/5) x 20 = 20/5 = 4

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3 years ago

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5/3x−2y=−2 −x+y=2<br> What is the solution of the system of equations?

gtnhenbr [62]

Answer:

(x, y) = (-6, -4)

Step-by-step explanation:

The solution can be found quickly using a graphing calculator. It is the point of intersection of the two lines.

_____

If you like, you can solve the system algebraically. The second equation can be rewritten to give ...

y = x +2

Substituting this into the first equation gives ...

5/3x -2(x +2) = -2

-1/3x -4 = -2

Adding 4 and multiplying by -3 gives ...

x = -3(-2+4) = -6

Then our equation for y tells us ...

y = -6 +2 = -4

The solution is (x, y) = (-6, -4).

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3 years ago